UBUNTU: [Packaging] initial packaging import from linux-unstable-5.12

[mirror_ubuntu-jammy-kernel.git] / debian / scripts / misc / getabis

#!/bin/bash

export LC_ALL=C.UTF-8

if [ "$#" = "1" ]; then
	set - $(echo "$1" | sed -e 's/-/ /')
fi
if [ "$#" != "2" ]; then
	echo "Usage: $0 <version>" 1>&2
	echo "Usage: $0 <release> <revision>" 1>&2
	exit 1
fi

if [ "$DEBIAN" = "" ]; then
	. debian/debian.env
fi

ver=$1
revision=$2
abi=$(echo $revision | sed -r -e 's/([^\+~]*)\.[^\.]+(~.*)?(\+.*)?$/\1/')

verabi=$ver-$abi
verfull=$ver-$revision

WGET="wget --tries=1 --timeout=10 --quiet -c"

abidir="`pwd`/$DEBIAN/abi/$verfull"
tmpdir="`pwd`/abi-tmp-$verfull"
origdir="`pwd`"
fwinfo=$abidir/fwinfo

test -d $tmpdir || mkdir $tmpdir

package_prefixes() {
	: # no longer used ...
}

getall() {
	arch=$1
	shift

	mkdir -p $abidir/$arch

	for sub in $@; do
		if [ -f $abidir/$arch/$sub ]; then
			echo "Existing $sub($arch)..."
			continue
		fi
		echo "Fetching $sub($arch)..."
		getall_set "linux-buildinfo" "$arch" "$sub" || \
		getall_set "linux-image-unsigned linux-modules linux-modules-extra" "$arch" "$sub" || \
		getall_set "linux-image-unsigned linux-modules" "$arch" "$sub" || \
		getall_set "linux-image linux-modules linux-modules-extra" "$arch" "$sub" || \
		getall_set "linux-image linux-modules" "$arch" "$sub" || \
		getall_set "linux-image linux-image-extra" "$arch" "$sub" || \
		getall_set "linux-image" "$arch" "$sub" || \
		{ echo "FAILED"; exit 1; }
	done
}
getall_set()
{
	prefixes="$1"
	arch="$2"
	sub="$3"
	(
		echo -n "  set:"
		filenames=""
		cd $tmpdir
		found=1
		for prefix in $prefixes
		do
			echo -n " $prefix="
			if [ "$found" = 0 ]; then
				echo -n "-"
				continue
			fi
			filename=${prefix}-${verabi}-${sub}_${verfull}_${arch}.deb
			for r in "${repo_list[@]}"
			do
				if ! [ -f $filename ]; then
					$WGET $r/$filename
					rc="$?"
					# If this was not successful or a valid error
					# return from the server all bets are off, bail.
					[ "$rc" != 0 -a "$rc" != 8 ] && return 2
				fi
				if [ -f $filename ]; then
					echo -n "y"
					filenames="$filenames $filename"
					break
				fi
			done
			if [ ! -f "$filename" ]; then
				echo -n "n"
				found=0
			fi
		done
		echo ""
		if [ "$found" = 0 ]; then
			return 1
		fi
		echo "  extracting..."
		for filename in $filenames
		do
			dpkg-deb --extract $filename tmp
		done
		# FORM 1: linux-image et al extracted here.
		if [ -d tmp/boot ]; then
			echo "  images..."
			find tmp -name "*.ko" | while read f; do
				modinfo $f | grep ^firmware >> $fwinfo
			done
			if [ -f tmp/boot/abi-* ]; then
				mv tmp/boot/abi-* $abidir/$arch/$sub
			else
				echo "    NO ABI FILE"
			fi
			if [ -f tmp/boot/retpoline-* ]; then
				mv tmp/boot/retpoline-* $abidir/$arch/$sub.retpoline
			else
				echo "    NO RETPOLINE FILE"
			fi
			(cd tmp; find lib/modules/$verabi-$sub/kernel -name '*.ko') | \
				sed -e 's/.*\/\([^\/]*\)\.ko/\1/' | sort > \
				$abidir/$arch/$sub.modules
			(
				cd tmp;
				# Prevent exposing some errors when called by python scripts. SIGPIPE seems to get
				# exposed when using the `find ...` form of the command.
				ko=$(find lib/modules/$verabi-$sub/kernel \
					-name '*.ko' | head -1)
				readelf -p .comment "$ko" | gawk '
					($1 == "[") {
						printf("%s", $3);
						for (n=4; n<=NF; n++) {
							printf(" %s", $n);
						}
						print ""
					}' | sort -u >$abidir/$arch/$sub.compiler
				version=`cat $abidir/$arch/$sub.compiler`
				echo "    $version"
			)
		# FORM 2: moduleinfo packages
		# cranky fix -- modinfo supported
		else
			echo "  buildinfo..."
			base="tmp/usr/lib/linux/${verabi}-${sub}"
			mv "$base/abi" "$abidir/$arch/$sub"
			for comp in 'modules' 'retpoline' 'compiler'
			do
				mv "$base/$comp" "$abidir/$arch/$sub.$comp"
			done
			cat "$base/fwinfo" >>"$fwinfo"
		fi
		rm -rf tmp $filenames
		echo "  done"
	)
	rc="$?"
	if [ "$rc" = 2 ]; then
		echo "ERROR: downloads are reporting network failures" 1>&2
		exit 1
	fi
	return "$rc"
}

# MAIN

# Setup abi directory
mkdir -p $abidir
echo $abi > $abidir/abiname
echo $verfull > $abidir/version

# NOTE: The flavours are hardcoded, because they may have changed from the
# current build.

. $DEBIAN/etc/getabis

# Extract compiler source package version from e.g.:
#   GCC: (Ubuntu/Linaro 4.8.2-19ubuntu1) 4.8.2
compilers=`sed 's/^.*(.* \(.*\)).*$/\1/' $abidir/*/*.compiler | sort -u | wc -l`
if [ "$compilers" != 1 ]; then
	echo "WARNING: inconsistent compiler versions detected:" 1>&2
	sort -u $abidir/*/*.compiler | sed 's/^/WARNING:    /' 1>&2
fi

sort < $fwinfo | uniq > fwinfo.tmp
mv fwinfo.tmp $fwinfo

rmdir $tmpdir

# Replace the previous ABI directory with the new one
abiprevdir="$(pwd)/$DEBIAN/abi/previous"
rm -rf "$abiprevdir"
mv "$abidir" "$abiprevdir"

# If this is running in a git repo, add the current ABI directory and remove any old ones
if [ -d ".git" ]; then
    git add "$abiprevdir"
    find "$DEBIAN"/abi/* -maxdepth 0 -type d | grep -v '/previous$' | while read f; do git rm -rf "$f"; done
fi